Paper perforating device



Aug. 2, 1932. F. .l. KLINE 1,870,055

PAPER PERFORATING DEVICE Filed March 6, 1951 76 INVENTOR Fen /6 n'1 fl g), L a 7W ATTORNEYS Patented Aug. "2, 1932 UNITED sr'rs PATENT FFlCE FRED J. KLINE, F BAYVILLE, NEW YORK PAPER PERFORATING DEVICE Application filed March 6,

.' en 3 ortin the pa er and for indicatin the b .L b

proper position thereof to permit the punchingof holes therein in predetermined position.

It is the primary object of the invention to provide a simple and eifective device whereby a plurality of uniformly spaced holes may be punched in the paper, the spacing being variable to meet the several requirements of standardand other binders.

Further objects and advantages of the invention will be apparent as it is better understood by reference to the following specificm tion and accompanying drawing in which the preferred embodiments of the invention are described and illustrated. In the drawing Fig. 1 is a plan view of a punch embodying the invention i Fig. 2is an enlarged. sectional view on the line 22 of Fig. 1;

Fig. 3 is an enlarged sectional view on the line 33 of Fig. 1; and

Figs. 4 and 5 are plan views illustrating the manner in which the punch is used.

Referring to the drawing, the punch includes a base 5 which is preferably wider at the rear than at the front and which carries an upright support 6 at one side and at the rear thereof to provide a pivot 7 for an operating lever 8 having a knob or handle 9.

" The upright support 6 carries also a punch bearing 10 for a punch 11 which is connected to the lever 8. The lever is normally supported by a spring 12 mounted in the punch bearing 10. The punch 11 is generally cylindrical in form and may have an extending punch member 11 which will cut a slot in the paper from the perforation to the edge of the sheet but the lower end thereof may be of any suitable shape to conform with a corresponding opening 13 in a die plate 14 which is secured to the base 5. Thus by operating the lever 8 the punch 11 may be forced downwardly through the sheet or sheets of a paper disposed upon the base 5 and into the opening 13 to effect the perforation of the paper.

1931. Serial 7 No. 520,602.

The die plate let is preferably marked with indicia 15, for example, in inches and fractions thereof measured from the centre line of the punch. A gauge 16 is slidably mounted in a slot 17 in the base beneath the die plate 14. The latter does not completely cover the slot and leaves an opening therefore through which an upwardly projecting finger 18 on the gauge projects. The finger 18 may be set opposite the indicia on the die Q plate to register the position of the left-hand edge of the sheet or sheets to be perforated so that the initial perforation therein will be at a correspondin distance from the left-hand edge of the sheet.

A gauge bar 19 is supported on thebase 5 at the rear thereof to fix the position of the upper or rear edge of the sheet or sheets to be perforated. A rod 20 is supported above the gauge bar in brackets 22 and a slidable gauge 23 having a knob 21 and a shank 25 is pivotally mounted on the bar 20. The gauge bar 19 is provided with a plurality of notches 26 disposed preferably at standard I distances from the centre of the punch. The standard distances between perforations for the usual types of binders are two and oneeighth inches, two and three-eighths inches,

two and three-quarters inches and three and one half inches. Of course other standards may be adopted and the notches may be disposed accordingly. The shank 25 of the gauge 23 is adapted to be disposed in one or the other of the notches, thus fixing the position of the knob 24 at a corresponding distance from and in line with the punch. Thus, when a single perforation has been formed in the paper the latter may be shifted toward the left-handside of the device until the perforation, registers with the knob 24. With the upper or rear edge of the sheet then in engagement with the gauge bar 19 the lever may be operated again to form another perforation. The distance of the a second perforation from the first will depend upon the position of the gauge 26 and any number of sheets may thus be perforated with uniformly spaced openings for use in loose-leaf binders and similar devices.

The mode of operating the punch is more clearly illustrated in Figs. 4t and 5 of the drawing in which a sheet of paper 27 is disposed with its left-hand edge 28 in engagement with the upwardly projecting finger 18. The position of the finger is determined first by the length of the rear or upper edge of the sheet and the desired positioning of the perforations therein. The finger 18 being set, the first perforation will be spaced from the left-hand edge of the sheet at the desired distance therefrom. When the first perforation has been made the sheet is shifted toward the left-hand edge of the device as .indicated in Fig. 5 until the perforation registers with the knob 24. The second operation of the lever produces another perforation at a distance from the first corresponding to the previous adjustment of the gauge 23. Any successive number of perforations with predetermined spacing may thus be made in the sheet by shifting it toward the left-hand side of the device and registering the last perforation made with the knob 24.

The invention as described is particularly useful in perforating sheets for loose-leaf ledgers and the like. It permits the re quired perforation in a simple and effective manner and with assurance of uniform spacing of the perforations so that the latter will register properly with the holding devices provided in the ledger or other binder. A particular advantage of the device is that it permits any desired spacing of the perforations so that it can be used to perforate sheets or binders of various kinds requiring standardor other spacing of the perforations.

It willbe understood that the particular form of the gauges employed is not essential to the invention which depends rather upon the provision of convenient gauges arranged to permit uniform spacing of the perforations in the manner described. Various changes may be made, therefore, in the details of construction and arrangement of the parts without departing from the invention or sacrificing any of the advantages thereof.

I'claim:

1. A punch for perforatingpapers comprising abase, a die and punch supported thereon, means for operatingthe punch, a pivoted gauge having a knob in laterally displaceable alignment with the punch anda gauge bar having notches to receive and determine the position ofthe gauge.

2. A punch for perforating papers comprising a base, a die and punch supported thereon, means for operating the punch, a gauge bar at the rear of the base, a rod supported above the gauge bar and a gauge pivoted on the rod and movable transversely. of the base thereon, the gauge having means to engage a perforation in the paper.

3. A punch for perforating papers comprising a base, a die and punch supported thereon, means for operating the punch, a gauge bar at the rear of the base, a rod supported above the gauge bar and a gauge pivoted on the rod and movable transversely o the base thereon, the gauge having means to engage a perforation in the paper and the gauge bar havinga plurality of notches to determine the position of the gauge.

4. A punch for perforating papers comprising abase, a die-and punch supported thereon, means for operating the punch, a transversely movable gauge slidably supported in the base and having a finger projecting through a slot therein and asecond gauge having means thereon to engage a perforation in the paper.

5. A punch for perforatingpapers com prising a base, a die and punch supported thereon, means for operating the punch, a transversely movable gauge slidably supported in the base and having a finger projecting through a slot therein, a second gauge having means thereon to engage a perforation in the paper and means to hold the second gauge in adjusted position.

6. A punch for perforating papers comprising a base, a die and punch supportedthereon, means for operating the punch, a transversely movable gauge slidably supported in the base and having a finger proecting through a slot therein, a second gauge having means thereon to engage a perfora tion in the paper means to hold the second gauge in adjusted position including a gauge bar having spaced notches to receive. the gauge.

In testimony whereof I aflix my signature.

FRED J.-' KLINE. 

